DRD Paratus. Defense Research & Development (DRD) Paratus, Latin for Ready is a takedown platform designed for 2011 Clandestine Breakdown Sniper System (CSR), offspring of Swetal “Skip” K. Patel dating back to 2004 Special Operations Command Assault Rifle (SCAR). Originally Patel introduced Cobb Manufacturing MCR (Multi Caliber Rifle) based off AR15 convertible between 5.56mm, .308, .30'06, .338, and .300 changing only magazine insert and upper copied by Colt with 901 Modular AR Carbine while Mack Gwinn Industries (MGI) submitted Modular Lower Receiver (MLR) with Quick Change Upper (QCB-D) with magazine wells and barrels interchangeable on one lower. After 2007 Freedom Group merger, Bushmaster bought Cobb separating Patel who created DRD Tactical in 2010 while Bushmaster founder Richard Dyke created Windham Weaponry in 2011 and brought on original cofounder Mack Gwinn to reintroduce MGI as Hydra in 2016. Paratus is direct gas system available with Noveske Switchblock and non-reciprocating charging handle where carrier gas key operates both gas tube and recoil spring without buffer-tube. Barrel is free-floating German Lother-Walther chromemoly or stainless locks into gas tube hand-tightened reinforced by spanner wrench available in .17 to .50 calibers with convertible calibers, barrels, lengths and .308 SR25 magazine standard. Stock is folding adjustable based on Magpul Masada another SCAR entry acquired by Bushmaster in 2008. Firing control group is HK SEF type selector with AR15 interchangeable internals and Geissele match trigger. Take-down is toolless disassembling Paratus into billet alumimum upper and lower receiver, barrel, and handguard removed with flip of toggle-lock. In 2017, DRD introduced Aptus, Latin for Suitable in 5.56mm/.300 utilizing Paratus system with smaller footprint. Entire package fits into backpack or briefcase and can be assembled in one minute providing 1MOA performance.
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